Sinonim eurypterid

English Thesaurus

1. large extinct scorpion-like arthropod considered related to horseshoe crabs (noun.animal)

hypernym	:	arthropod,
definition	:	invertebrate having jointed limbs and a segmented body with an exoskeleton made of chitin (noun.animal)

member meronym	:	eurypterida, order eurypterida,
definition	:	extinct aquatic arthropods of the Paleozoic (noun.animal)